Vehicle-spring.



P. J. F. B ATENBUHG.

VEHICLE SPRING.

APPLICATION FILED AUG.21.I9I5.

Patented Feb. 20, 1917.

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PETER, J. F. EATIEMBURG, F

CLINTONVILLE, WISCONSIN, ASSIGNOR To some wnnnn DRIVE AUTO GUMIPANY, OJ? CLIENIONVILLE, .WISCONSIN, A CORPORATION OF 71$- CONSIN.

vnriicnesrarne.

Application filed. August 21 To all whom it may concern:

Be it known that l, lnrnn J. F. Barnunuuo, a subject of theQueen of the Nether lands, residing at Clintonville, county of llaupaca, and State of Wisconsin, have invented new and useful Improvements in Vehicle- Springs, of which the following is a specification My invention relates to improvements in vehicle springs with particular reference to that class of springs which are employed. as driving springs for motor driven vehicles. But my invention is also adapted to be advantageously embodied in any form of vehicle spring where av shifting of the spring would otherwise be possible.

The object of my invention is to provide a form of spring which may be securely anchored to the axle of a vehicle and used, if desired, as a driving spring without danger of shifting movements, and without resorting to expedients which would cause crys .illll til tallination.

'In the drawing Figure 1 is a side view, partly in elevation and partly in section, of a spring and spring mounting embodying my invention. I

ig. 2 is a sectional view drawn on line m-m of 1.

Like parts are identified by the same ref-- erence characters in both views.

The lower clamping member of spring seat A may be of a y ordinary construc tion. This member has an aperture A through which the vehicle axle extends. The lower leaf B of the spring may also be of ordinary construction, but the upper leaf C is provided with a pair of upwardly extending bends D, one on each side of the center and preferably near the front and rear margins, respectively, of the upper clamping member E. Said upper clamping member is provided with recesses formed in its lower face to receive the anchorage projections D on the upper leaf G, and curved in correspondence therewith. A key pin F is preferably inserted underneath the upwardly projecting bend D in the upper leaf The extremities F of this key pin are down-turned to engage the leaf B of the spring upon which the leaf C 'is directly superposed. The pin F is preferably semihpecification of Letters Patent.

that where the leaves of load by the springs alone.

Patented Feb. 2&191'3... 1915. Serial No. 46,613.

vehicle frame and have their extremities bent to form hooks b engaging over a coupling pin or bolt G, with the frame of the vehicle. The clamping stirrups H and the resilient buffer I may be of any ordinary construction.

it is not essential that the key pins F be employed. Neither is it essential that the coking projections D be formed by'bending the leaf (1 upwardly, although this is a con.- venient method of forilning the projections. 'Ilhe principal function of the key pins F is to preclude the possibility of the bends D, yielding under heavy strains.

am aware of the fact have been made, heretofore, to anchor the leaves of the spring at the center, directly above the axle, by forming therein a series of bends which provide projections and recesses, but expo 'iments have demonstrated a spring are thus bent at the center, they will invariably crystallize and will frequently break at the bends, thi being) probably due to opposite bending and pushing stresses. It also tends to weaken the leaves of the spring at the point where they are further weakened by the that attempts apertures through which the connecting bolt K passes. But by anchoring the upper leaf of my improved spring to the upper clampiug member E near the front and rear margins of the latter, and particularly where such anchorage is pressure exerted .by I crystallization is wholly avoided and a sufficient anchorage is secured to permit supporting and driving the vehicle frame and i It. is therefore possible to dispense with strut rods, even in the construction of heavy trucks.

l claim- 1. A spring leaf, provided with frame engaging and supporting members at its respective ends, and having projections on one face thereof, at points between said ends and the central portion, in combination with a clamping member, suitably socketed to receive said projections and clamping stirrups engagingthe clamping member between said projections and the central portion of the spring. I

2. The combination, with a set of ordinary spring leaves, arranged in a superposed series, of an upper leaf, provided with upwardly projecting bends. on each side of connecting these leaves exterior to the zone of the clamping stirrup H,

end means for clamping the spring leaves between upper-and lower clamping members, the upper of said inenibers being recessed to receive the ribs formed in the upper leaf, substantially as described.

3. The combination, with a set of ordinary spring leaves, arranged in a super posed series, of an upper leaf provided with upwardly projecting bends 'on each side of its Center, which form transverse ribs on its upper surface and transverse grooves on its lower surface, a key pin extending through each of said transverse grooves between said leaf and the upper leaf of the series below, said key pin having downwardly projecting extremities engaging the edge margins of the leaf upon which it rests, and means for referees clamping, the spring leaves between upper and lower clanniing members, the upper of said members being recessed to receive the ribs forn'ied in the upper leaf.

4. The combination with a set of ordinary spring leaves arranged in a superposed series, of an upper leaf, provided with upwardly projecting hends on each side of its center, a centrally disposed bolt securing the leaves together, and upper and lower clamping members adapted to bind said leaves, the upper of said members having transverse grooves adapted to receive the ribs on the upper leaf and the lower of said members being bored to receive the axle.

In testimony whereof I ailix my signature in the presence of two witnesses.

PETER J. F. BA'lENBURG.

Witnesses:

A. (7. Carmen,

(i. A. llmvrrr. 

